NFPA 252  Standard Methods of Fire Tests of Door Assemblies

NFPA 252  门组件的防火试验用标准方法

 

本标准规定了适用于防火门总成的标准化消防和软管流试验程序，旨在通过防火墙中的门孔阻止火灾蔓延。本标准的目的是规定特定的火灾以及防火门组件的软管流试验程序，以标准化确定此类组件在阻止火灾（火焰、热量、温度、温度、温度和温度）蔓延方面提供的防火等级的方法。

 

This standard prescribes standardized fire and hose stream test procedures that apply to fire door assemblies intended to be used to retard the spread of fire through door openings in fire-resistive walls ，The purpose of this standard is to prescribe specific fire

and hose stream test procedures for fire door assemblies in order to standardize a method for determining the degree of fire protection provided by such assemblies in retarding the spread of fire (flame, heat, and hot gases) through door open- ings in fire-resistive walls The degree of fire protection measured in units of time is not an absolute value because all possible actual fire scenar ios are not represented by the standard fire exposure described herein This standard allows different fire door assemblies to be pared with each other in order to evaluate their relative performance as measured against a standard fire exposure.

EN1634-1: 防火门及百叶窗—防火性能测试